Version 0.6
26 August 2004
Page 15 of 52
For use with Vega 50 8 FXS + 2 FXO – SIP version 09.02.05.2 T003 or greater.
© 2004 VegaStream Ltd.
Note 1:
The Relationship between physical ports and Interface Ids is as follows:
FXS 1 = IF:06
FXS 2 = IF:07
…
FXS 8 = IF:13
FXO 1 = IF:56
FXO 2 = IF:57
SIP LAN = IF:99
Note 2:
The SIP proxy must choose the appropriate interface on the Vega to dial out from.
When a call is presented to the Vega for an FXS port, the INVITE message starts
something like:
INVITE sip:[email protected] SIP/2.0
The digits preceding the @ are provided to the dial planner as the source TEL:. Hence
in the dial plan above the calls coming from the LAN (IF:99) must have a 2-digit dialled
number (whose value must be 06 ... 13 for valid Vega 50 interface IDs), which is used
to define which telephone to ring.
When a call is presented to the Vega for an FXO port, the INVITE message starts
something like:
INVITE sip:[email protected] SIP/2.0
The digits preceding the @ are provided to the dial planner as the source TEL:. Hence
in the dial plan above this call with a leading “8” will be sent to FXO port 2 and the
following digits “01344784900” will be DTMF outdialled on this port.
For more details on the operation of the dial planner, including the various
tokens that may be used, see the section “The Dial Planner” in the Vega
Primer.
